The conformation of a diastereoisomeric pair of 2,2-dimethyl-4-phenyl-3-pentanols.
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概要
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The conformations of a diastereoisomeric pair of 2,2-dimethyl-4-phenyl-3-pentanols were studied by means of <SUP>1</SUP>H-NMR, <SUP>13</SUP>C-NMR, IR, GC, and MS analyses. All of the results point to an unambiguous conclusion that these molecules are present dominantly in conformers where the <I>t</I>-butyl and the phenyl group lie close to each other. The generality of the phenomenon (favored <I>gauche</I> interaction) as well as the nature of the interactions involved were discussed in light of the conformational problems of the structurally related molecules. The presence of an attractive interaction (CH/π interaction) is suggested between an alkyl and a phenyl group, the possible importance of which in some dynamic phenomena (<I>e.g.</I>, selectivities in certain reactions) has then been discussed on this basis.
- 公益社団法人 日本化学会の論文
著者
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UZAWA Jun
The Institute of Physical and Chemical Research
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Zushi Shoji
Central Research Institute Of Meiji Seika Kaisha Ltd.
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Kodama Yoshio
Central Research Laboratories, Meiji Seika Kaisha, Ltd.
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Nishihata Ken
Central Research Laboratories, Meiji Seika Kaisha, Ltd.
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Nishio Motohiro
Central Research Laboratories, Meiji Seika Kaisha, Ltd.
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Sakamoto Kazuhiko
Research Centre for Spectrochemistry, Faculty of Science, The University of Tokyo
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Iwamura Hiizu
Research Centre for Spectrochemistry, Faculty of Science, The University of Tokyo
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Nishihata Ken
Central Research Laboratories, Meiji Seika Kaisha Ltd.
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Kodama Yoshio
Central Research Laboratories, Meiji Seika Kaisha Ltd.
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Nishio Motohiro
Central Research Laboratories, Meiji Seika Kaisha Ltd.
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